Just like the rest of The Bible, they need to be taken in context and we need to read the whole Bible to understand them. I believe that we are required to serve in our country's military, by law, that we should obey that law and defend our country and those who don't have anyone else to defend them. All it takes for evil to flourish is for good men to do nothing.
You seem to judge others out-of-hand. You aren't making any sense or progress because of this fault. You need to be teachable to be able to grow. Without humility you're like a crooked stick that is of no use. It can't be straightened. Humility is the currency of Heaven, not conceit.